.chat-item-content {
  width: 504rpx;
  margin-bottom: 0.5rem;
  padding: 0.6rem;
  border-radius: 10px;

  font-size: 28rpx;
  background-color: #fff;

 
}
.chat-item-content.ai {
  background-color: var(--a-color-main);
}